Grinding and machine dog



FIG. 1 is a perspective view of a grinding and machine dog embodying the present design;

FIG. 2 is an elevational view of one side thereof;

FIG. 3 is an elevational view of the edge opposite that shown in FIG. 1;

FIG. 4 is an elevational view of the side opposite that shown in FIG. 2;

FIG. 5 is an elevational view of the end seen in FIG. 1; and

FIG. 6 is an elevational view of the end opposite that shown in FIG. 5. 

The ornamental design for a grinding and machine dog, substantially as shown. 